Center Differential Fluid for 4000q
Per Lindgren
lindgre at online.no
Thu Oct 31 14:43:58 EST 2002
I bought a pump for this, from the FLAPS. The pump has a hose at the
end, stick the hose into the bottle, pull the handle, stick the hose
into the filler hole, and push the oil in. It works like a giant
syringe! Takes about 1/2 quart at a time. With this one, you dont need a
lift. Fill the tranny until the oil is level with the filler hole.
PerL
87 Cq
EricNMN at aol.com wrote:
>In my '86 4k Quattro, the fill plug was fairly evident. It uses a 17mm hex head as I recall. I think there were two drain plugs or two fill plugs for the transmission/center diff. The center differential and transmission use the same fluid reservoir.
>
>Another list member made a suggestion recently - remove the fill plug first. That way, if the drain plug won't come out, just re-install the fill plug. BUT, if you remove the drain plug first and can't get the fill plug out, you have a problem.
>
>A few more recommendations:
>
>Use a lift - I did mine in the driveway and cursed the lack of space.
>Wear clothes you can throw out. Gear oil has a strong/unique odor.
>Use a synthetic gear oil. I SUSPECT you need GL-4 75W-90. Confirm this before you purchase.
>Use a pump to fill. There is not a lot (NONE AT ALL) of room to tilt the bottle when you fill the case.
>
>Eric Schumacher
>96 A4 Quattro
>86 4kCSQ (deceased)
>
>Is there a filler plug for the center differential on the 4000 quattro? The drain plug is evident on the bottom. I have heard different stories that there is and also that it is filled through the transmission? I dont want to drain it until I know for sure where to fill it. If there is a filler do you have to remove the cat converter to see it? Also what is the correct fluid?
>If its filled through the Tranny you have to use a synthetic correct? The Bentley book isnt that clear as to the diff. fluid for quattro versus front wheel drive. Any help is greatly appreciated.
>
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